The power of nature and growth, green focuses on sheer brute force, and power-ups, with the drawback that some of these cards have high converted mana cost.

Most of the time while cards are on the battlefield, the color of cards isn't that important. At many times, however, color is very important. Many cards have protection from certain colors, and others can't be blocked except by creatures with the same color as them. Many black spells can only destroy non-black creatures.